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SubjectRe: [RFC PATCH] ipc, mqueue: lazy call kern_mount_data in new namespaces
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Andrew Morton <akpm@linux-foundation.org> writes:

> OK, but this simply moves the expense so it happens later on. Why is
> that better?

the optimization is for new IPC namespaces that don't use mq_open. In
this case there won't be any kern_mount_data cost at all.

Regards,
Giuseppe

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